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| author | Li Zefan <lizf@cn.fujitsu.com> | 2011-03-03 14:25:37 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-04 11:32:50 +0100 |
| commit | 3db272c0494900fcb905a201180a78cae3addd6e (patch) | |
| tree | cc15a5c4004c26d847162353f752dad4d9dbb03e /kernel/perf_event.c | |
| parent | 940c5b2971de443df22eed0441bc74fb0116e9f5 (diff) | |
| download | linux-3db272c0494900fcb905a201180a78cae3addd6e.tar.gz linux-3db272c0494900fcb905a201180a78cae3addd6e.tar.bz2 linux-3db272c0494900fcb905a201180a78cae3addd6e.zip | |
perf cgroup: Fix leak of file reference count
In perf_cgroup_connect(), fput_light() is missing in a failure path.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4D6F3461.6060406@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 821ce8221974..7c999e809ba3 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -404,8 +404,10 @@ static inline int perf_cgroup_connect(int fd, struct perf_event *event, return -EBADF; css = cgroup_css_from_dir(file, perf_subsys_id); - if (IS_ERR(css)) - return PTR_ERR(css); + if (IS_ERR(css)) { + ret = PTR_ERR(css); + goto out; + } cgrp = container_of(css, struct perf_cgroup, css); event->cgrp = cgrp; @@ -422,6 +424,7 @@ static inline int perf_cgroup_connect(int fd, struct perf_event *event, /* must be done before we fput() the file */ perf_get_cgroup(event); } +out: fput_light(file, fput_needed); return ret; } |